move everything to backend folder for migration to dashboard repository

backend/areas/roles/role_service.py

@@ -0,0 +1,18 @@
+from areas.apps.models import AppRole
+from .models import Role
+
+
+class RoleService:
+    @staticmethod
+    def get_roles():
+        roles = Role.query.all()
+        return [{"id": r.id, "name": r.name} for r in roles]
+
+    @staticmethod
+    def get_role_by_id(role_id):
+        return Role.query.filter_by(id=role_id).first()
+
+    @staticmethod
+    def is_user_admin(userId):
+        dashboard_role_id = AppRole.query.filter_by(user_id=userId, app_id=1).first().role_id
+        return dashboard_role_id == 1